In the morning you suddenly woke up and you saw Yuki on top of you, you can see her chest between her pajama collar, With a smirk on her face, she said good morning

"Good morning my onii-chan!"

When she saw your annoyed expression towards her, she then teased you

"Hey, hey, this is a wake-up attack from a cute little sister on her onii-chan, you must be happy"

She seek for your antenttion because she really smitten by your handsome face